package io;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
/**
 * 文件复制(单字节读写)
 */
public class CopyDemo {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("Kobe.jpg");
        FileOutputStream fos = new FileOutputStream("Kobe_cp.jpg");

        long start = System.currentTimeMillis(); //获取自1970.1.1零时到此时此刻所经历的毫秒数
        int d;
        while((d=fis.read())!=-1){
            fos.write(d);
        }
        long end = System.currentTimeMillis();

        System.out.println("复制完毕，耗时:"+(end-start)+"ms");
        fis.close();
        fos.close();
    }
}



















